Changes in Uterine Polyps: Size Variations Explained

Uterine polyps can vary in size?

Hello Doctor, I recently had a small polyp measuring 0.76 cm checked right after my menstrual period ended.
A week later, when I followed up with related questions, the doctor said it was nothing to worry about.
He mentioned that it would likely be larger by now, and indeed it has grown to 1.14 cm by 0.95 cm.
He also mentioned that I had just ovulated.
I would like to ask if the increase in size is due to the endometrial lining becoming thicker? Does the thickening of the lining also cause the polyp to grow, or does it not affect the polyp? The doctor suggested that I could wait until the next menstrual period ends to check the situation, but he also said I don't have to wait that long.
Would it be too frequent to have a check-up once a month? Thank you.

Niming, 30~39 year old female. Ask Date: 2022/04/24

Dr. Zhang Kunmin reply Obstetrics and Gynecology

Hello, the general recommendation is to perform an ultrasound examination when menstruation has ended.
The frequency of the examinations should be determined by the treating physician based on clinical conditions.
It is advisable to consult with the examining physician for further guidance.
Thank you! Wishing you peace and health.
Dr.
Chang

Reply Date: 2022/04/24

More Info

Understanding changes in uterine polyps, particularly regarding their size variations, is crucial for women’s health. Uterine polyps, also known as endometrial polyps, are growths attached to the inner wall of the uterus that extend into the uterine cavity. They can vary in size and number, and their changes can be influenced by hormonal fluctuations, particularly estrogen.

When you mention that a polyp measured 0.76 cm and then increased to 1.14 cm x 0.95 cm, it is important to understand that this growth can be attributed to the hormonal changes that occur during the menstrual cycle. After menstruation, the endometrial lining begins to thicken in preparation for a potential pregnancy, influenced by estrogen. This thickening can affect the size of the polyp as well.
The polyp itself is composed of endometrial tissue, which means that as the endometrium thickens, the polyp may also increase in size. However, it is essential to note that the growth of the polyp does not necessarily mean that it is becoming more problematic. Many polyps are benign and do not cause any symptoms. The fact that your doctor indicated that the polyp is not concerning is a positive sign.
Regarding your question about whether the thickening of the endometrium would affect the polyp, it is indeed possible for the endometrial tissue surrounding the polyp to thicken while the polyp itself also increases in size. The growth of the endometrial lining can occur simultaneously with the growth of the polyp, and they do not "skip" over the polyp.
As for the frequency of monitoring, it is not uncommon for doctors to recommend follow-up examinations after a month, especially if there are changes in size or if the polyp is symptomatic. Regular monitoring can help ensure that any changes are documented and assessed appropriately. If your doctor believes that a one-month follow-up is warranted, it is likely because they want to keep a close eye on the polyp's behavior and any potential symptoms you may experience.

In summary, the increase in size of your uterine polyp can be attributed to the natural hormonal changes in your menstrual cycle, particularly the thickening of the endometrial lining. Regular follow-ups are essential for monitoring any changes, and it is advisable to follow your doctor's recommendations regarding the timing of these examinations. If you have any concerns or experience symptoms such as abnormal bleeding, pain, or changes in your menstrual cycle, it is crucial to communicate these with your healthcare provider. They can provide further evaluation and determine if any intervention is necessary.

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